Cordierite Vs Jeremejevite
Origin
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
Southern and central Africa
Color
Blue, Violet, Greenish, Brown, Colorless, Colorless, Blue, Violet, Yellow, gray
Yellow, Blue, Colorless, Yellow, White
For which Rashi?
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Planet
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Element of Planets
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Finger
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Ring Metal
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Energy
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Deities
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Not to wear with
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Powers
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Planetary
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Talisman
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Tenacity
Brittle
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Solubility
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Durability
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Specific Gravity
2.57-2.66
3.28-3.31
Fracture
Subconchoidal, Conchoidal, Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
Fair on {100}, poor on {001} and {010}
None observed
Mohs Hardness
7-7.5
6.5-7.5
Chemical Composition
Mg2Al4Si5O18
Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.
Luster
Greasy, Vitreous
Vitreous
Pleochroism
X = pale yellow
Colorless
Dispersion
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Transparency
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Gemmological Tables (2004) More from other references
Refractive Index
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1.638-1.650
Optic Character
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Crystal System
Orthorhombic
Hexagonal
Birefringence
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0.0130
Clarity
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TransparentUlrich Henn and Claudio C. Milisenda
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
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Healing
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Qualities Associated
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Cordierite Vs Jeremejevite Fracture
Fracture is an important parameter when you compare Cordierite and Jeremejevite Physical Properties. It is necessary to understand the significance of these properties, before you compare Cordierite Vs Jeremejevite fracture. Whenever a gemstone chip breaks, it leaves a characteristic line along its breakage. Such lines are known as fracture and are used to identify the gemstones in their initial stages of production when they are in the form of rough minerals. Fracture is usually described with the terms “fibrous” and “splintery” to denote a fracture that usually leaves elongated and sharp edges. Fracture observed in Cordierite is Brittle, Conchoidal and Subconchoidal. Jeremejevite fracture is Brittle, Conchoidal, ConchoidalArthur Thomas and Gemstones (2009).
Cordierite Vs Jeremejevite Luster
A primary knowledge about Cordierite vs Jeremejevite luster is useful in apparent identifications of these gemstones. Luster is the measure of light that gets reflected when incident on a finished cut gemstone. There are two major types of lusters: Silky and Adamantine. Since luster varies between two crystals of even the same gemstone, luster is limited to basic identification criteria. Cordierite exhibits Greasy and Vitreous luster. Jeremejevite, on other hand, exhibits Vitreous luster.